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Atomic Theory Flashcards | StudBud
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Atomic Theory
Atomic Theory
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#science #atomictheory #protons #neutrons #isotopes #averagemass
Flashcards
19 cards
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Questions
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Answers
1
An atom of iron-52 contains 26 protons. How many neutrons does it have?
36
52
78
26
2
How many protons, neutrons, and electrons are there in an atom of Boron-11?
5,5,6
5,6,5
11,6,5
11,11,11
3
When a nucleus splits, particles will cause additional nuclei to split. This is known as ___ .
angular momentum
thermal equilibrium
endothermic reaction
a chain reaction
4
Use the data in the table to calculate the average atomic mass of the unknown element
6.5
692.5
6.925
13
5
How did Rutherford contribute to the atomic theory today?
Discovered that electrons pass through atoms
Discovered that electrons are spread out evenly
Discovered that protons have a positive charge
Discovered that atoms have a nucleus
6
Carbon has three isotopes C-12, C-13, and C-14 which one is the most abundant?
All the same abundance
C-12
C-14
C-13
7
What subatomic particles contribute to the mass of an atom?
Neutrons and Protons
Neutrons only
Protons and electrons
Protons only
8
Which element's atoms contain the fewest protons?
Copper (29)
Bromine (35)
Radium (88)
Calcium (20)
9
This experiment led to the discovery of the nucleus when it found some particles bouncing back
Atomic emission spectrum
Cathode ray tube
Chocolate chip cookie model
Gold foil experiment
10
What element is the model showing?
Fluorine
Potassium
Oxygen
Neon
11
A fission reaction ___ atoms to form ___ atoms
splits heavier; lighter
splits stable; more reactive
combines lighter; hydrogen
combines lighter; heavier
12
If you created a timeline of atomic theories, what would be the correct order?
I don't know!
Greeks -> Dalton -> Thomson -> Rutherford -> Bohr
Greeks -> Dalton -> Bohr -> Rutherford
Greeks -> Thomson -> Rutherford -> Bohr -> Dalton
13
A typical atom of sodium has 11 p, 12 n and 11 e. What is the mass number of Sodium?
23
11
12
What Mr. Shin?
14
Which of the following was
NOT
one of the Greek elements proposed by Aristotle?
Earth
Fire
Water
Sun
15
Atoms containing different numbers of neutrons but the same number of protons are called what?
Neutrinos
Isotopes
Ions
Quarks
16
What element is the model representing?
Chlorine-20
Bromine - 37
Rubidium
Chlorine - 37
17
Why don't electrons fly away from the nucleus?
They are deflected by the electron cloud
They are sitting still inside an energy level
They have opposite charges and are attracted
They have the same charge and are attracted
18
Which subatomic particle(s) will always match the atomic number?
All three subatomic particles combined
Protons
Neutrons only
Neutrons
19
The discovery of electrons led to this model proposed by JJ Thomson
Building level model
Planetary model
Plum Pudding model
Billiard ball model
